Goofs
The song "You Made Me Love You" was first published in 1913, however when Richard first awakens in 1912 and finds himself in a stranger's room, the occupant of the room can be heard singing this song.

An American flag flying from the Grand Hotel in 1912 has 50 stars. In 1912 it should have 46 stars (early in the year), or 48 stars (after 4 July).

William Robinson: I thinkyou'd better go.
Elise McKenna: Have you been waiting all this time for our return?
William Robinson: This is hardly the time.
Elise McKenna: Have you?
William Robinson: Yes. Does that surprise you?
Elise McKenna: Our relationship is strictly business.

Elise McKenna (declaiming on stage): I've lived without it all my life. Is it any wonder. then. I failed to recognize you? You've brought it to me forthe first time.

Soundtrack: Rachmaninoff Rhapsody on a Theme of Paganini Op. 43, Variation 18; "Somewhere In Time" performed by Roger Williams.